gnarly

[ nahr-lee ]

/ ˈnɑr li /

gnarled.

Slang. distasteful; distressing; offensive; gross: a comic noted for his gnarly humor.

Origin of gnarly

First recorded in 1820–30; gnarl¹ + -y¹

gnarl·i·ness, noun

gn, gnamma hole, gnar, gnarl, gnarled, gnarly, gnash, gnash one's teeth, gnashers, gnat, gnatcatcher

And on the new, pavement beaches, surfers would enjoy the highest, gnarliest waves in history.

California Sinkin’: What Rising Sea Levels Will Mean for the Golden State |Alex Klein |June 30, 2012 |DAILY BEAST
The gnarliest will have some redeeming traits even to the eye.

Excursions and Poems |Henry David Thoreau

gnarly

/ (ˈnɑːlɪ) /

another word for gnarled

NZ informal good; great

surfing slang difficult and dangerous